The slope of the drain pipe : snip

Drafting drainage

begins with system design geodetic and hydrological calculations section.This work is done in order to determine the operating conditions, as well as drainage facilities, as well as its basic parameters.

project should contain:

1. diagrams and technical drawings of the sewer system and all its elements, both on the surface and underground parts
2. Mounting characteristics gutters - diameters, sizes, laying depth and slope of the drain pipe.SNIP provides rules for these quantities
3. dimensions of all the elements that make up the network - wells, pipe fittings, pipe fittings and other details
4. Feasibility estimate construction

drainage systems Project documentation should consider the following features:

• geomorphology of the area
• Climatic features of the area in which it is located
• benchmark groundwater
• characteristics and structure of the soil
• The remoteness of water objects from the construction site

feasibility study

Beforeto begin to build the drainage system, you must make a full estimate of the construction, which takes into account such operations:

1. Dismantling constructions of reinforced concrete
2. Organization and carrying out excavation works, strengthening of the trench walls and arrangement of sealing polyethylene film
3. construction diametric drain two-way release
4. Layingat the bottom of the trench bed of gravel or crushed stone
5. Installation of drainage pipes, strengthening layers of litter, and reinforcement of concreted surfaces
6. Dismantling roadway
7. construction of new webs of asphalt concrete
8. Landscape
9. Prepare soil for landscaping
10. construction designs temporaryuse - bridges, crossings, etc.

required for construction materials:

• gravel or gravel
• Sand
• Perforated drainage pipes, which are covered with geotextile to avoid getting communications soil particles inside
• geotextile - performs a filtering function
• Drainage wells

Installation

system effectively divert waste water from the area is possible, if you build a drainage in accordance with all requirements:

1. sewer network closed calls for excavation works - you need to dig a trench to a depth of 70 cm to 1.5 mless than 40 cm in width, the bottom of the recess is inclined towards the header, the same slope and drainage pipes.SNIP provides such value - 1 meter length of the slope is equal to 2 cm in the construction in clay soils, this value is 3 cm to 1 m length for sandy soils.
2. sure the bottom of the trench is filled with a layer of crushed stone or gravel 20-30 cm thick, tamped it, then laid it on the pipe, covered with geotextile, and then the top layer is made of expanded clay laying and backfilling excavation ground
3. Wastewater discharge after transporting themdrains, collection reservoirs and wells, carried out in the pond.
4. maintenance and monitoring of the network is using the drainage wells made of concrete or plastic.

With proper design and construction of drainage of groundwater level mark does not rise above the level of the project, and a few drops, which has a positive effect on the fertility of the soil.If the system installation was done incorrectly, the soils are waterlogged, which will have a devastating impact on the foundation design.

construction of drainage must be made of high quality materials.Regulation of their properties by means of such acts:

• GOST 8411-74.- This document contains the specifications and operating conditions ceramic drainage pipes
• GOST 1839-80.- Especially the use of asbestos cement pipes for the construction of non-pressure networks

If you execute the proposed recommendations in the article, it is possible to build a reliable system that will effectively remove excess moisture from the area that protects it are in the construction, communication and crops.The main stage of a responsible approach to calculate and identify the main network parameters - laying depth and slope of the drain pipe.SNP suggests specific requirements with regards to this topic that should be performed during construction.